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Evolutionary theories and comparative anatomy the origin, evolution and geographical deployment of the primates evolutionary principles applicable to the limbs the skeleton of the hand the joints of the wrist the joints of the hand the extrinsic muscles of the hand - the long flexors the extrinsic muscles of the hand - the extensors intrinsic muscles of the hand fossil hand bones the skeleton of the foot the ankle joint the intrinsic joints of the foot the extrinsic muscles of the foot - the long flexors the extrinsic muscles of the foot - the extensors intrinsic muscles of the foot fossil foot bones.
Aiello et al. (Sat,) studied this question.